I turned killshooter back on in the arena.
I expected folks to get shot accidentally occasionally.
What I did not expect was someone purposely killing a countryman just for kicks, or for immersiveness.
My bad, not anticipating that players would exploit that feature. We have the duelling arena and training arena if you wanna shoot another green plane.
My apologies to those who were negatively affected by killshooter being off.
It will not happen again in a setup of mine, ever.